Unfortunately, though flat tappets from China are cheap, their metallurgy is suspect-and the same goes for the quality of their machining, heat treatment and surface-hardening.
The paper also briefs the nozzle or moving blade surfacehardeningtreatment technology, including plasma spraying and diffusion layer for preventing the nozzle and moving blade from SPE.
From forging, machining, hardening, surfacetreatment and so on, until the product packaging, all processes are in khine parker WuPu tal factories to complete.